Determine which NIC is going through which M6220 in a blade enclosure

I've got an M1000e blade enclosure with pass through modules for the 'A' fabric, and M6220 switches for the 'B' fabric

Each blade has a mezzanine card with 2x1GB ports and I am trying to determine which port is attaching to which switch.

I can't find a command for the switch CLI that will show me the mac addresses of the server NICs that are connected to that particular switch.

on a cisco switch, I'd do something like show mac_address_table, but there doesn't appear to be a similar command for these m6220s

Anyone have a suggestion?